When I now start a map on my location, many of the stations I can receive do not show up in the list. They ALL used to show up but I'm not sure exactly when they vanished off the list, as I haven't used the interactive map in a while. I'm talking major stations, NBC, CBS and PBS affiliates that are as close as 15 miles from the house, some of the strongest stations I can get. Those don't appear, yet it will show me network-affiliated stations that are way down in the red or gray zones, only receivable by my antenna setup in tropo conditions. What gives??